S peters co



No. 625,5l3.

(No Model.)

M. J. OWENS.

GLASS BLUWING MACHINE.

(Application led Dec. I, 189B.)

Patented may .23, |899.`

UNITED STATES PATENT OFFICE.

MICHAEL J. OWENS, OF TOLEDO, OHIO, ASSIGNOR TO THE TOLEDO GLASS COMPANY, OF SAME PLACE.

GLASS-BLOWING MACHINE.

SPECIFICATION forming part of Letters Patent No. 625,513, dated May 23, 1899.

Application iiled December l. 1898. Serial N0- 697,9'76. (No model.)

To all 1077/0711/ t may concern.-

Be it known that I, MICHAEL J. OWENS, a citizen of the United States, residing at Toledo, in the county of Lucas and State of Ohio, have invented certain new and useful Improvements in Glass-Blowing Machines, of which the following is a specification, reference being had therein to the accompanying drawings.

The invention consists in the construction of a glass-blowing machine, and relates to the combination, in a machine comprising a blowpipe supported in operative relation to an airsupply device and to a mold or other shaping device, of means by which the air maybe varied uniformly for each successive operation ofthe machine or during each blowing period, all as more fully hereinafter described.

In the drawings, Figure l is a side elevation of Iny improved machine. Fig. 2 is a horizontal section through the top thereof, and Fig. 3 is a vertical section through the air-controlling valve.

The machine shownin the accompanying drawings is substantially like that shown in my previous patent, No. 548,588, with differences herein set forth and claimed, and which I will briefly describe. f

A is a suitable base,'preferably having a tank at one point.

B are standards on the base vsupporting the operating parts.

C is a vertical shaft supported in the base and the standard and upon which are secured the radiating arms D and E. Connected to the lower end of the shaft C are similar arms F, at the outer end of which are sectional molds G, adapted to be opened and closed. It is understood that any other shaping device may be used in place of the molds.

H is a blowpipe ofsubstantially the usual construction adapted to be supported in the end of the arms E, with its lower end in operative relation to the sectional mold or other shaping device and with its upper end in operative relation to the nozzle or coupler I, which is located at the outer end of each arm D. This coupler is of suitable size to receive the upper end of the pipe H and is connected by a passage therethrough, and in this case with a passage d through the arm D, with thus turn the article in the shaping device during the blowing operation.

These parts are as shown in the patent previously referred to, and the operation is substantially as follows: The operator, with the suitable gather on the end of his blowpipe, inserts the end of the blowpipe into the coupler and supports the blowpipe in the arm E. The shaping device is then closed about the gather, and the machine, by suitable drive mechanism, rotates about the shaft C. As

the blowpipe travels away from the position in which it was put in the machine a valve M, having a stem N, strikes the valve-operating flange O and opens the valve and admits air to the blowpi pe to blow the article. After the shaping device has traveled a part of the revolution it is opened, the blowpipe detached, and by suitable connections (not here shown and not relating to this invention) it is lowered and passes through the tank. (Shown in dotted lines at the right hand in Fig. l.) The water in the tank wete the paste-lined surfaces and the mold, prevents their cracking, and also cools the mold.

A machine thus constructed had no means for changing the air-pressure in the article being blown from the time the valve was opened until the valve was closed, the valve being closed by the action of the spring P around its stem, and therefore imperfect work would result in Very many cases. In order to vary the air-pressure, I have arranged a portion of the iiange O eccentric to the path of the valve-stem N, so that when the valvestern first struck that flange in its movement it would open the valve but slightly and as it moved along the stem N would be pushed in, so as to open the valve more, and thereby increase the pressure as the glass became cool in the mold. It is evident that each time the IOO blowpipe travels along the camway the valve would be operated in precisely the same manner, so that the air variation would be the same for each successive blowing period or each successive operation of the machine. It is also evident that by changing the contour of the camway O, I may change the variation of the air-pressure as desired. While I have shown this air-varying device applied to a machine having a traveling blowpipe, this is not an essential of my invention, for it is evident that a cam or other mechanism may be employed to vary at each operation the airpressure supplied to the blowpipe of a stationf ary machine.

I believe I am the first in a machine of this kind to apply mechanism which will give for each successive blowing operation the same air variation. Y

I deem it of Very great importance to the practical success of a glass-blowing machine that this air variation shall be provided for and that the variation shall be the same in each successive operation.

While I have shown my machine as in use with an ordinary sectional mold, the kind of shaping device employed has nothing to do with my present invention, and it is evident that any other mechanism by which the article may be shaped at the lower end of the vblowpipe can be used in place of the mold Without in any way departing from the spirit of my invention.

What I claim as my invention isda I. In a glass-blowing machine,the combination with a sectional shaping device, adapted to be opened and closed, of an air-supply device for the blowing, a blowpipe, a support to hold the blowpipe in operative relation to the shaping device and air-supply device, and a controlling means for the air-supply by which the ai r-supply during each successive blowing period may be uniformly varied.

2. In a glass-blowing machine,the combination with a sectional shaping device adapted to be opened and closed, of an air-supply device for the blowing, a blowpipe, a support to hold the blowpipe in operative relation to the shaping device and air-supply device, and au automatic controlling means for the air-supply by which the air-supply during each successive blowing period may be uniformly varied.

3. In a glass-blowing machine, the combination with a sectional shaping device adapted to be opened and closed, of an air-supply device for the blowing, a blowpipe, means for eecting a relative rotation between the article being blown and its shaping device, a support to hold the blowpipe in operative relation to the mold and air-supply device, and a controlling means for the air-supply device by which the air-supply during each successive blowing period may be uniformly varied.

4. In a glass-blowin g machine, the combination with a sectional shaping device, adapted to be opened and closed, of an air-supply de` vice for the blowing, a blowpipe, a support to hold the blowpipe in operative relation to the shaping device and air-supply device, a controlling means for the air-supply by Which the air-supply during each successive blowing period may be uniformly varied, and means for causing these parts to travel in unison during the blowing operation.

5. In a glass-blowing machine, an air-supply device, an air-duct leading from said airsupply device to an article in process of formation in a shaping device, and controlling means for the air-supply by which the pres sure during each successive blowing period may be varied uniformly.

In testimony whereof I affix my signature in presence of two Witnesses.

MICHAEL J. OWENS.

Witnesses:

JAMES WHITTEMORE, F. D. SUYDAM, J r. 

